Research On Technology Of Universal Design For System Based On 1553B Bus

With the change of mission requirements and working environment of modern aircraft,it proposes great challenges to the overall function and performance of the aircraft avionics systems.Aircraft avionics systems usually choose 1553 B redundancy data bus with high reliability as the standard data communication bus.However,complex 1553 B bus system generally uses many kinds of 1553 B products with compatibility problem in software applications,having strong negative impact on development progress of terminal communication task application.Therefore,a universal communication mechanism to solve this problem is needed urgently.According to many types of boards by laboratory and existing material,this paper carries out the research on the system generalization based on 1553 B bus,aiming at solving the software compatibility problems of different types of boards.Firstly,this paper analyzes 1553 B Bus communication technology and the general functional requirements of the three terminals are given according to the typical task application.Then,the hierarchical architecture is used to design general system of 1553 B bus,and the data structure and typical algorithm are given.Finally the key technologies of generalization is discussed.According to the typical task application requirements,complete the general control interface module detailed design for BC terminal and RT terminal.Based on this,complete the interface conversion module detailed design for different models of 1553 B board.For the typical 1553 B bus communication task,complete the general,perfect bus status monitoring and fault diagnosis module detailed design.A debugging and testing system of 1553 B bus communication is designed to validate the feasibility of the above-mentioned content by combining the concrete scientific research application and the human-computer interaction MFC interface software interface.